本题目来源于试卷: newnewnewnew，类别为 IB物理学
[问答题]
Two rock climbers, B4th5 r jx: y t3ta4)yl,.qmuvhill and Karen, use safety ropes of /hun*j ni8r( ksimilar length. Karen's rope is more elastic, called a dynamic rope by climbers.h/rn(*in 8 juk Bill has a static rope, not recommended for safety purposes in pro climbing. Karen falls freely about 2.0 m and then the rope stops her over a distance of 1.0 m (Fig. 463). (a) Estimate, assuming that the force is constant, how large a force she will feel from the rope. (Express the result in multiples of her weight.) (b) In a similar fall, Bill's rope stretches by 30 cm only. How many times his weight will the rope pull on him? Which climber is more likely to be hurt?
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